A low‐loss Ka‐band waveguide to substrate integrated waveguide transition based on ridged stepped‐impedance transformer

A low‐loss Ka‐band transition from waveguide to substrate integrated waveguide (SIW) is presented based on ridge waveguide stepped‐impedance transformer. This novel transition can operate across a full Ka‐band (26.5 to 40 GHz) with an insertion loss lower than 0.59 dB and return loss over 14.2 dB. F...

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Bibliographic Details
Published in:Electronics letters 2021-08, Vol.57 (17), p.662-664
Main Authors: García Pérez, J. A., Goussetis, G., Fan, H., Ding, Y.
Format: Article
Language:English
Subjects:
Design
Impedance
Inductors and transformers
Insertion loss
Manufacturing
Passive filters and other passive networks
Satellite communications
Single antennas
Substrate integrated waveguides
Surface mount technology
Transformers
Waveguide and microwave transmission line components
Waveguides and microwave transmission lines
Weight reduction
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Summary:A low‐loss Ka‐band transition from waveguide to substrate integrated waveguide (SIW) is presented based on ridge waveguide stepped‐impedance transformer. This novel transition can operate across a full Ka‐band (26.5 to 40 GHz) with an insertion loss lower than 0.59 dB and return loss over 14.2 dB. Furthermore, compared to existing transitions the introduction of ridges reduces the metal usage, resulting in weight reduction and offering an encouraging application for weight‐sensitive satellite communications (SatComs).
ISSN:0013-5194
1350-911X
DOI:10.1049/ell2.12223